Well,

I have created from scratch the simplest GWT application I could think
of... I created the simplest build file I could think of (No Ivy
dependency management, no code... Just a blank web page) and then
attempted to build the project... I got exactly the same results as
above.

I decided to try a different version of Ant just to ensure it had
nothing to do with Ant, and again the same results.

I am not sure what to do at this point. I may try the build on another
machine just to make sure it is not my environment. I may have to rely
on a non-ant build (Cypal Studio in Eclipse) which seems to work
without any problems. Unfortunately, there is no way to automate that
process.

- Brian I.

On Oct 13, 12:24 pm, "Isaac Truett" <[EMAIL PROTECTED]> wrote:
> Sorry I couldn't identify the exact problem. It certainly is an odd
> error. The only other time I've seen it fail to find java.lang.Object
> was in this thread:
>
> http://groups.google.com/group/Google-Web-Toolkit-Contributors/browse...
>
> ... where I solved the problem by dumping my classpath and starting
> from scratch, basically.
>  I never did find exactly what was causing the problem, but hopefully
> starting from scratch will work for you, too.
>
> On Mon, Oct 13, 2008 at 2:20 PM, birwin <[EMAIL PROTECTED]> wrote:
>
> > It does contain com/google/gwt/emul/java/lang/Object.java
>
> > Just to make sure the GWTCompile task handles spaces in its classpath,
> > I moved the user.jar to the root directory and created a new classpath
> > that just had that JAR. I tried a recompile and included the new
> > classpath and again it failed with the same error.
>
> > I believe I am going to start from scratch and try to do a "Hello
> > World"-type build where I don't include any Ivy dependencies, etc...
> > and everything is very basic.
>
> > Once I have that working, I will return to debugging this build. If I
> > find a solution, I will post it here when I finish.
>
> > Thank you for your help I appreciate it.
>
> > - Brian I.
>
> > On Oct 13, 12:03 pm, "Isaac Truett" <[EMAIL PROTECTED]> wrote:
> >> That looks fine to me. I'm really fishing now... could you open up
> >> gwt-user.jar and confirm that it contains
> >> com/google/gwt/emul/java/lang/Object.java?
>
> >> On Mon, Oct 13, 2008 at 1:47 PM, birwin <[EMAIL PROTECTED]> wrote:
>
> >> > Sorry, the last Timecard.gwt.xml was not the correct one. Here is the
> >> > one I am using:
>
> >> > <?xml version="1.0" encoding="UTF-8" standalone="no"?>
> >> > <module>
>
> >> >        <!-- Inherit the core Web Toolkit stuff.                  -->
> >> >        <inherits name="com.google.gwt.user.User"/>
>
> >> >        <!-- Inherit Web Toolkit Incubator stuff -->
> >> >        <inherits name="com.google.gwt.widgetideas.WidgetIdeas"/>
> >> >        <inherits name="com.google.gwt.libideas.LibIdeas"/>
>
> >> >        <!-- Specify the app entry point class.                   -->
> >> >        <entry-point class="com.webapp.client.Timecard" />
>
> >> >        <source path="client" />
> >> >        <public path="public" />
>
> >> >        <servlet class="com.webapp.server.TimecardServiceImpl" path="/
> >> > timecardservice" />
> >> > </module>
>
> >> > Thanks,
>
> >> > Brian I.
>
> >> > On Oct 13, 11:32 am, "Isaac Truett" <[EMAIL PROTECTED]> wrote:
> >> >> You're right, it does appear to be there. Off the top of my head, I
> >> >> can't think of what else would prevent the compiler from finding
> >> >> java.lang.Object. I guess I'd want to look at Timecard.gwt.xml next,
> >> >> just to see if something looks off. Would you mind posting that?
>
> >> >> On Mon, Oct 13, 2008 at 1:16 PM, birwin <[EMAIL PROTECTED]> wrote:
>
> >> >> > Thanks again for your response Isaac,
>
> >> >> > I believe I do have the gwt-user.jar on my path... I am using Ivy for
> >> >> > my dependency resolution. I assigned the gwt JARs from IVY and named
> >> >> > the path "gwt.path"
>
> >> >> > Just to make sure the user JAR was on the path, I assigned the path to
> >> >> > a property and then echoed the property to System.out. Here is the ant
> >> >> > calls I made and the subsequent message printed to System.out:
>
> >> >> >     <property name="gwt.path.property" refid="gwt.path" />
> >> >> >     <echo message="classpath= ${gwt.path.property}"/>
>
> >> >> >     [echo] classpath= C:\Documents and Settings\irwinb\.ivy2\cache
> >> >> > \com.google\gwt-dev-windows\jars\gwt-dev-windows-1.5.0.jar;C:
> >> >> > \Documents and Settings\irwinb\.ivy2\cache\com.google\gwt-user\jars
> >> >> > \gwt-user-1.5.0.jar
>
> >> >> > You can see that gwt.path apears to hold gwt-user.jar (Version 1.5).
>
> >> >> > Assembling this path is controlled by an Ivy task, so I don't know the
> >> >> > details of how Ivy assembles classpaths, but I did verify the JAR was
> >> >> > in the location specified.
>
> >> >> > Any other ideas or did I miss something?
>
> >> >> > - Brian I.
>
> >> >> > On Oct 13, 10:38 am, "Isaac Truett" <[EMAIL PROTECTED]> wrote:
> >> >> >> >     [java] com.google.gwt.core.ext.typeinfo.NotFoundException:
> >> >> >> > java.lang.Object
>
> >> >> >> This suggests to me that you don't have gwt-user.jar on your 
> >> >> >> classpath.
>
> >> >> >> On Mon, Oct 13, 2008 at 12:23 PM, birwin <[EMAIL PROTECTED]> wrote:
>
> >> >> >> > Thank You Isaac,
>
> >> >> >> > That did eliminate the ZipException...
>
> >> >> >> > I am now getting this error. From what I can tell, this indicates 
> >> >> >> > my
> >> >> >> > classpath does not include my client source files.
>
> >> >> >> >     [java] Loading module 'com.sosstaffing.soar.webapp.Timecard'
> >> >> >> >     [java]    Translatable source found in...
> >> >> >> >     [java]       [WARN] No source path entries; expect subsequent
> >> >> >> > failures
> >> >> >> >     [java] com.google.gwt.core.ext.typeinfo.NotFoundException:
> >> >> >> > java.lang.Object
>
> >> >> >> > My GWT Compile task now looks like this:
>
> >> >> >> >                <java classname="com.google.gwt.dev.GWTCompiler">
> >> >> >> >                        <arg value="-out" />
> >> >> >> >                        <arg file="web" />
> >> >> >> >                        <arg value="%*" />
> >> >> >> >                        <arg value="com.webapp.Timecard" />
> >> >> >> >                        <classpath>
> >> >> >> >                                <pathelement location="${dir.src}" 
> >> >> >> > />
> >> >> >> >                                <path refid="compile.cp" />
> >> >> >> >                                <path refid="class.path" />
> >> >> >> >                                <path refid="gwt.path" />
> >> >> >> >                        </classpath>
> >> >> >> >                </java>
>
> >> >> >> > I am assuming this error means that the GWT compiler still cannot 
> >> >> >> > find
> >> >> >> > my source files. The ${dir.src} in my pathelement tag is the 
> >> >> >> > location
> >> >> >> > of my source files (the src directory that contains my com folder) 
> >> >> >> > My
> >> >> >> > Timecard.gwt.xml file is located in the com.webapp folder and my
> >> >> >> > client source files are located in com.webapp.client folder.
>
> >> >> >> > Here is my file structure:
>
> >> >> >> > +src
> >> >> >> >    +com
> >> >> >> >        +webapp
> >> >> >> >            +client
> >> >> >> >            Timecard.gwt.xml
>
> >> >> >> > This looks right to me, but I am new to GWT and must be missing
> >> >> >> > something.
>
> >> >> >> > On Oct 11, 6:35 am, "Isaac Truett" <[EMAIL PROTECTED]> wrote:
> >> >> >> >> It appears that you are putting individual files in your 
> >> >> >> >> classpath instead
> >> >> >> >> of directories. Ant tries to open each of those files expecting 
> >> >> >> >> them to be
> >> >> >> >> zip files.
> >> >> >> >> Change your classpath so that it points to the root of your 
> >> >> >> >> source and class
> >> >> >> >> file trees, not each file in those trees. The only non-directory 
> >> >> >> >> entries in
> >> >> >> >> your classpath should be jar files.
>
> >> >> >> >> On Fri, Oct 10, 2008 at 7:39 PM, birwin <[EMAIL PROTECTED]> wrote:
>
> >> >> >> >> > I have been trying to solve this problem all day and I cannot 
> >> >> >> >> > seem to
> >> >> >> >> > make any headway. My Ant task that compiles my GWT files is 
> >> >> >> >> > giving me
> >> >> >> >> > this exception over and over:
>
> >> >> >> >> > java.util.zip.ZipException: error in opening zip file
>
> >> >> >> >> > I am using Eclipse 3.4 (Ganymede) with Ant 1.7.0. My GWT 
> >> >> >> >> > Version is
> >> >> >> >> > 1.5.
>
> >> >> >> >> > Here is the portion of the task that is supposed to compile the 
> >> >> >> >> > GWT
> >> >> >> >> > code:
>
> >> >> >> >> >                <java classname="com.google.gwt.dev.GWTCompiler">
> >> >> >> >> >                        <arg value="-out" />
> >> >> >> >> >                        <arg file="web" />
> >> >> >> >> >                        <arg value="%*" />
> >> >> >> >> >                        <arg value="com.webapp.Timecard" />
> >> >> >> >> >                        <classpath>
> >> >> >> >> >                        <fileset dir="src" />
> >> >> >> >> >                                <path refid="compile.cp" />
> >> >> >> >> >                                <path refid="class.path" />
> >> >> >> >> >                                <path refid="gwt.path" />
> >> >> >> >> >                        </classpath>
> >> >> >> >> >                </java>
>
> >> >> >> >> > My log file has thousands of the following error messages:
>
> >> >> >> >> > Ignoring Exception java.util.zip.ZipException: error in opening 
> >> >> >> >> > zip
> >> >> >> >> > file reading resource com/google/gwt/dev/GWTCompiler.class from 
> >> >> >> >> > C:
> >> >> >> >> > \Documents and 
> >> >> >> >> > Settings\fred\workspace\com\webapp\Timecard.gwt.xml
>
> >> >> >> >> > (Each message is exactly the same except that the file name is
> >> >> >> >> > different. Each of my "Java" and "PNG" files are listed)
>
> >> >> >> >> > Then this stack trace is displayed in my log file over and over 
> >> >> >> >> > again:
>
> >> >> >> >> >     [java] java.util.zip.ZipException: error in opening zip file
> >> >> >> >> >     [java]     at java.util.zip.ZipFile.open(Native Method)
> >> >> >> >> >     [java]     at java.util.zip.ZipFile.<init>(ZipFile.java:203)
> >> >> >> >> >     [java]     at java.util.zip.ZipFile.<init>(ZipFile.java:234)
> >> >> >> >> >     [java]     at
> >> >> >> >> > org.apache.tools.ant.AntClassLoader.getResourceURL(AntClassLoader.java:
> >> >> >> >> > 1014)
> >> >> >> >> >     [java]     at
> >> >> >> >> > org.apache.tools.ant.AntClassLoader.getResource(AntClassLoader.java:
> >> >> >> >> > 917)
> >> >> >> >> >     [java]     at
> >> >> >> >> > com.google.gwt.util.tools.Utility.computeInstallationPath(Utility.java:
> >> >> >> >> > 283)
> >> >> >> >> >     [java]     at
> >> >> >> >> > com.google.gwt.util.tools.Utility.getInstallPath(Utility.java:224)
> >> >> >> >> >     [java]     at
> >> >> >> >> > com.google.gwt.util.tools.ToolBase.<clinit>(ToolBase.java:55)
> >> >> >> >> >     [java]     at java.lang.Class.forName0(Native Method)
> >> >> >> >> >     [java]     at java.lang.Class.forName(Class.java:242)
> >> >> >> >> >     [java]     at...
>
> read more »
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